On Mon, Jul 3, 2017 at 1:47 AM, Ed Greshko <ed.greshko(a)greshko.com> wrote:
PORT STATE SERVICE VERSION
21/tcp open ftp vsftpd 3.0.3
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
|_drwxr-xr-x 1 0 0 0 Dec 01 2016 pub
22/tcp open ssh OpenSSH 7.4 (protocol 2.0)
| ssh-hostkey:
| 2048 83:6c:cf:2c:d3:13:61:c7:56:0c:18:36:95:ff:4b:be (RSA)
|_ 256 53:76:a8:e1:3f:d1:65:8b:ea:6d:e4:d5:6f:58:7c:5a (ECDSA)
139/tcp closed netbios-ssn
445/tcp closed microsoft-ds
2049/tcp open nfs 3-4 (RPC #100003)
3389/tcp open ms-wbt-server Microsoft Terminal Service
5900/tcp closed vnc
5901/tcp open vnc VNC (protocol 3.8)
| vnc-info:
| Protocol version: 3.8
| Security types:
| VeNCrypt (19)
| VNC Authentication (2)
| VeNCrypt auth subtypes:
| VNC auth, Anonymous TLS (258)
|_ Unknown security type (2)
5902/tcp closed vnc-2
5903/tcp closed vnc-3
If I am not mistaken, "2049/tcp open nfs 3-4" is indicating versions 3
and 4 are available as I've noted.
"rpcinfog -p" or "rpcinfo -s" will output the nfs versions if you
don't have "nmap" installed.
(Or "cat /proc/fs/nfsd/versions")
Anyway, without knowing more about your configuration I can't
explain why it would
hang. But, hopefully you can check when the hang happens and see what processes
aren't being started.
+1
We'd, at least, need
rpm -qi nfs-utils
cat /etc/sysconfig/nfs
systemctl cat nfs-server.service
And a test with an empty (especially without "--udp")
"/etc/sysconfig/nfs" would be good.
IIRC, the problem's that there's a time out when rpc.nfsd starts.